2. historical (actual names of military units with number of personnel, tanks, etc.);

3. runs in real-time (the player pauses the timer to give orders) with fog of war;

4. not a lot of micro-management: the orders are attack, defend, transport, etc., with supplies sent daily from depots; and

5. air units attack and then return to base.

The game offers what-if scenarios (like strengthened and air-dropped units in the Battle of the Bulge), and there are other games in the series (like Conflict in Vietnam, which has a what-if scenario for Dien Bien Phu, and Decision in the Desert, on the WW2 North African campaign).